Construction calculators & guides

Every guide pairs a live imperial & metric calculator with the exact engineering formula behind it.

Concrete · 9 min read

Calculate cubic yards, m³, pre-mixed bags and ready-mix cost for any slab, pad, patio or garage floor—with the full step-by-step math.

Masonry · 8 min read

Count standard CMU, cinder or breeze blocks, deduct door and window openings, and calculate 80-lb mortar bags plus core-fill grout.

Concrete · 8 min read

Size round Sonotube deck piers, fence post holes (with buried post volume deducted) and continuous strip footings in yards, m³ and bags.

Reinforcement · 8 min read

Turn slab dimensions and on-center spacing into exact 20-ft or 6-m stock bar counts, including edge cover, 40d lap splices, ties and chairs.

Cost & Pricing · 9 min read

Compare turnkey contractor cost ranges (broom, exposed aggregate, stamped), ready-mix yardage and gravel sub-base tonnage for any driveway.